Auxiliary air-intake valve.



J. HEDGES & W. HAMMACK.

AUXILIARY AIR INTAKE VALVE.

i APPLICATION TILED SEPTiB. 1914. 1,142,424, Patent-edJune 8, 1915.

2 SHEETS-SHEET 1.

Snow/tom wwmmo J Hedges and \9' Y Y ammaclr.

J. HEDGES &W. HAMMACK.

AUXILIARY AIR INTAKE VALVE.

APPLICATION FILED SEPT'B, 1914. 7. 1,142,424.. Patented June 8, 1915.

2 SHEETS-SHEET 2.

awe/Mom cf Hedges and flammak.

JABEZ HEDGES AND WILLIAM HAMMACK, 0F LANCASTER, OHIO.

AUXILIARY hilt-INTAKE VALVE.

Specification of Letters Patent.

Fatented June 8 1915.

Application filed September 8, 1914. Serial No. 860,745.

To all whom it may concern:

Be it known that we, JABEZ Hnncns and lVILLLiM HAMMACK, citizens of the United States, residing at Lancaster, in the county of Fairfield and State of Ohio, have invented certain new and useful Improvements in Auxiliary Air-Intake Valves; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates broadly to improvements in valves and more particularly to those adapted for use for admitting air into the intake manifold of an internal combustion engine. j Y

The invention aims to provide extremely simple structure which may be readily attached to the intake manifold of an internal combustion engine and structure which, although simple, will be highly efficient in operation.

The abovementioned construction employed for carrying out the objects of the invention is described and claimed herein and shown in the accompanying drawings wherein- Figure 1 is a side elevation of a carbureter and a portion of an internal combustion engine, showing the application of our invention to the intake manifold leading from the former to the latter; Fig. 2 is a vertical -transverse section taken on the line 22 of Fig". 1; and, Figs. 3 and 4: are horizontal sections taken upon the line 34 of Fig. 1 and showing respectively the position of the parts when warm air is to be injected into the mixture and the relation which these parts assume ,when warm air is to be prevented from entering the mixture.

In the accompanying drawings, a portion of an internal combustion engine is illustrated which includes the usual intake manifold I and an exhaust manifold E. These parts may be of any suitable construction and form no part of the present invention, the intake manifold being here shown as having a forked upper end which connects with the cylinders of the engine in a well known manner, the upright portion of said inlet manifold being provided with an annular flange F on its lower end which is connected to the upper end of the Venturi tube of a carbureter the usual throttle valve T being employed in said tube. The throttle valve T is here shown as provided with an operating stem S to which a lever L is rigidly secured at its lower end, the upper end of said lever being pivotally connected to an operating rod R which may be shifted by any suitable means indicated at M in the drawings, said means being preferably operated from the floor of an automobile when the device is employed. in this connection.

Having its inner end threaded into the upright portion of the intake manifold I,

is a laterally projecting tube 1 which isformed with a passage 2 throughout its :length and with a pair of globular enlargeare provided withtransverse openings 7 and T adapted to register with the bore 2. The

valves 6 and 6 are provided with heads 8 and 8 on one end while their opposite ends project from the adjacent bosses and receive stop washers 9 which are preferably held in position thereon by means of cotter pins 10, coiled springs 11 being interposed between said washers and the adjacent ends of the bosses 4 and 4/, whereby the openings 7 and 7 are normally moved out of alinement with the bore 2 and whereby the heads 8 and 8' are normally forced in contact with the ends of the bosses adjacent thereto.

Leading from the outer end of the tube 1 to a heating drum 12 which is secured on the exhaust manifold E by any suitable means, is a warm air conducting tube 13 which is adapted to conduct heated air from said drum into the intake manifold I when the valves 6 and 6 are opened by means to be described.

Pivotally mounted in the bifurcated end 14 of an arm 15 secured to the flange F,

is an upright lever 16 whose lower end is shifted'to open the throttle valve T, the

valve 6 will be shifted to cause its opening 7 to register with the bore 2 within the tube 1. 1f the valve 6 is now open, warm air a l 6K3 may be drawn into the intake manifold to mingle With the mixture passing therethrough, but if the valve'6 is closed, it will be seen that although an additional amount of mixture is fed to the engine cylinders, no warm air is allowed. to enter the mixture. It will, therefore, be seen that it is expedient to provide means whereby the valve 6 may be positively held in open or closed position. For this purpose we have provided a wire 20 which is connected at one end to the head 8 while its opposite end is. connected to a lever 21, locked normally against movement by a rack 22, said lever and rack being preferably mounted adjacent the steering wheel V of the machine to which the previously described construction is applied, the intermediate portion of said wire passing through the tube or casing 23 as is common with devices of this character. By this con struction it' will be seen that '.the valve 6 may be positively held in open or closed posit-ion thus allowing warm air to flow into the intake manifold when the valve 6 is opened or preventing the entrance of air into said manifold, as the case may be. By so constructing and mounting the valves {5 and 6 the throttle valve T may. be operated to vary the amount of mixture fed to the engine cylinders without injecting warm air into said mixture, since the injection of the latter is not necessary in warm weather. When, however, it becomes necessary to raise the temperature of the mixture before feeding the same to, the engine cylinders, this being necessary in extremely cold weather,

the valve 6 may be held in open position by the means previously described thus allowing a predetermined amount of warm air to enter the intake manifold when the throttle valve T is opened, the amount of air allowed to enter being accurately regulated in order that the proportion of air and gas may remain normal.

We have descrlbed the valve 6 as being operated by the lever 21 and the valve 6 as movableF-simultaneously with the rod R but it will bei'eadily understood that the valve 6 could be operated by the lever 21 and the valve 6* by the rod R, since the effect would be the same.

Having thus described our invention what we claim is:

1. A valve comprising a tube, a number of bosses formed on said tube and having bores intersecting the bore thereof, cylindrical valves slidable through the bores of said bosses and across the bore of said tube, said valves having openings adapted to register with said bore of the tube, and each of said valves having one of its ends projecting beyond the adjacent bosses, stops on said projecting ends, coil springs located between said stops and said adjacent bosses, and independent means whereby said valves may be operated.

2. A valve comprising a tube having its opposite ends threaded, two pairs of bosses formed on opposite sides of said tube and having bores registering with and intersecting the bore thereof, cylindrical slide valves in the bores of said bosses and having openings adapted to be moved into register with the bore of the tube, heads on one end of said slide valves, the opposite ends thereof projecting beyond the adjacent bosses, stops on said projecting ends, and coil springs encircling the latter between the stops and the adjacent bosses, combined with independent means whereby the two slide valves may be operated.

In testimony whereofwe have hereunto set our hands in presence of two subscribing witnesses.

JABEZ nnioen' WILLIAM Hanna-on. 

